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US 4,493,513 AGranted
Bearing cage for retaining rolling elements
AssigneeNippon Seiko Kabushiki Kaisha
InventorsHiroyuki Osawa, Yasutaka Ishida
Life of this patent
Estimating the term…
Abstract
At least a part of the inner face 41 of each pocket of a cage 4 for retaining and guiding rolling elements is formed to have a curvature of similar configuration to that of the rolling element and the center of curvature of the face is positioned to radially deviate from the pitch circle of the rolling elements at a predetermined distance.
Claims7
In a cage for retaining rolling elements of a rolling bearing, of the type wherein the cage has at least one pocket formed therein for retaining a rolling element, the improvement which comprises:
- at least a part of the inner face of each pocket has a curved surface of substantially similar configuration to the curved surface of the rolling element and the center of the curvature of the curved surface is positioned to deviate radially from the pitch circle of the rolling element at a predetermined distance.
Dependencies are inferred from the claim text.